Cita APA

Gallagher, S., & Herbert, S. J. (1998). Powerbuilder 6.0: Unleashed. Techmedia.

Citación estilo Chicago

Gallagher, Simon, y Simon J.A Herbert. Powerbuilder 6.0: Unleashed. New Delhi: Techmedia, 1998.

Cita MLA

Gallagher, Simon, y Simon J.A Herbert. Powerbuilder 6.0: Unleashed. Techmedia, 1998.